23070 Oakgrove Rd 100
NAPA Auto Parts NAPA Auto Parts Herndon
23070 Oakgrove Rd 100
Sterling,  VA  20166
(703) 707-0800
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Sat:8:00 AM-5:00 PM
Sun:9:00 AM-4:00 PM
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BlueDEF Diesel Exhaust Fluid (DEF) – 1 gal
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BlueDEF Diesel Exhaust Fluid (DEF) – 1 gal

Part #: NAF DEF003
Line: NAPA Antifreeze
Requested quantity is not available. Please update the quantity below.

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Features & Benefits

Warranty: Standard : No Warranty, Expressed or Implied


BlueDEF Diesel Exhaust Fluid is a mixture of high purity synthetic urea and deionized water that is used in Selective Catalytic Reduction (SCR) systems in diesel vehicles.  DEF is used to help convert NOx to harmless nitrogen and water.

  • BlueDEF's Purity Guarantee is our assurance the DEF you are purchasing has been tested to meet or exceed the strictest OEM standards
  • America's #1 brand of Diesel Exhaust Fluid
  • Conforms to the ISO-22241-1 specification for DEF, and is an American Petroleum Institute (API) certified diesel exhaust fluid
  • Compatible with all diesel SCR systems
  • Non-toxic, non-flammable formula makes handling safe and easy


Brand Blue DEF
Container Size 1 gal (US)
VMRS Code 053999165

Safety Information